import 'package:enjoy_life/utils/NetworkService.dart';
import 'package:enjoy_life/utils/Toast.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:geolocator/geolocator.dart';
import 'package:permission_handler/permission_handler.dart';

class LocationList extends StatefulWidget {
  const LocationList({super.key});

  @override
  State<LocationList> createState() => _LocationListState();
}

class _LocationListState extends State<LocationList> {
  // 高德地图的key和baseUrl
  final String _key = '1d922afecca06a8edf097c2b723da654';
  final String _baseUrl = 'https://restapi.amap.com/v3';

  // 当前地址
  String address = '';
  // 周边小区列表
  List nearbyCommunities = [];

  @override
  void initState() {
    super.initState();
    // 动态获取位置权限
    requestLocationPermission();
    // 获取当前位置信息
    getCurrentLocation();
  }

  // 查询附近的社区
  Future<void> queryNearbyCommunities(double latitude, double longitude) async {
    String url =
        '$_baseUrl/place/around?key=$_key&location=$longitude,$latitude&radius=500&types=住宅小区';
    try {
      var res = await http.get(url);
      setState(() {
        nearbyCommunities = res['pois'];
      });
    } catch (e) {
      CustomToast.error('查询附近的社区失败: $e');
    }
  }

  // 地址逆解析
  Future<void> reverseGeocoding(double latitude, double longitude) async {
    String url =
        '$_baseUrl/geocode/regeo?key=$_key&location=$longitude,$latitude';
    try {
      var res = await http.get(url);
      setState(() {
        address = res['regeocode']['formatted_address'];
      });
    } catch (e) {
      CustomToast.error('地址逆解析失败: $e');
    }
  }

  /// 异步获取当前设备的位置信息。
  ///
  /// 此方法首先根据设备的平台（Android、iOS/macOS 或 Web）配置不同的定位设置，
  /// 然后使用这些设置获取设备的当前位置，并处理位置信息或异常。
  Future<void> getCurrentLocation() async {
    late LocationSettings locationSettings;

    if (defaultTargetPlatform == TargetPlatform.android) {
      // 针对Android平台，设置高精度定位、100米距离过滤、强制使用位置管理器等
      locationSettings = AndroidSettings(
          accuracy: LocationAccuracy.high,
          distanceFilter: 100,
          forceLocationManager: true,
          intervalDuration: const Duration(seconds: 10),
          foregroundNotificationConfig: const ForegroundNotificationConfig(
            notificationText:
                "Example app will continue to receive your location even when you aren't using it",
            notificationTitle: "Running in Background",
            enableWakeLock: true,
          ));
    } else if (defaultTargetPlatform == TargetPlatform.iOS ||
        defaultTargetPlatform == TargetPlatform.macOS) {
      // 针对iOS和macOS平台，设置高精度定位、健身活动类型、100米距离过滤等
      locationSettings = AppleSettings(
        accuracy: LocationAccuracy.high,
        activityType: ActivityType.fitness,
        distanceFilter: 100,
        pauseLocationUpdatesAutomatically: true,
        // 只有在应用在后台启动时才设置为true
        showBackgroundLocationIndicator: false,
      );
    } else if (kIsWeb) {
      // 针对Web环境，设置高精度定位、100米距离过滤、5分钟的最大年龄等
      locationSettings = WebSettings(
        accuracy: LocationAccuracy.high,
        distanceFilter: 100,
        maximumAge: const Duration(minutes: 5),
      );
    } else {
      // 对于其他平台，默认设置高精度定位和100米距离过滤
      locationSettings = const LocationSettings(
        accuracy: LocationAccuracy.high,
        distanceFilter: 100,
      );
    }

    try {
      Position position = await Geolocator.getCurrentPosition(
          locationSettings: locationSettings);
      // print(position);
      reverseGeocoding(position.latitude, position.longitude);
      queryNearbyCommunities(position.latitude, position.longitude);
      CustomToast.success('当前息获取成功: $position');
    } catch (e) {
      CustomToast.error('获取位置信息失败');
    }
  }

  // 动态获取位置权限
  Future<void> requestLocationPermission() async {
    PermissionStatus status = await Permission.location.request();
    if (status.isGranted) {
      CustomToast.success('已授权');
    } else {
      CustomToast.error('未授权');
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Text('选择社区'),
        ),
        body: ListView(
          padding: const EdgeInsets.all(10),
          children: [
            const Row(
              children: [
                Text(
                  '当前地址',
                  style: TextStyle(color: Colors.grey),
                )
              ],
            ),
            const SizedBox(height: 10),
            Container(
              color: Colors.white,
              padding: const EdgeInsets.all(10),
              child: Row(
                children: [
                  Expanded(child: Text(address)),
                  Row(
                    children: [
                      const Icon(Icons.location_searching_outlined,
                          color: Colors.blue),
                      const SizedBox(width: 2),
                      GestureDetector(
                        onTap: () {
                          // 地址逆解析
                          reverseGeocoding(40.065956, 116.350077);
                          queryNearbyCommunities(40.065956, 116.350077);
                        },
                        child: Text(
                          '重新定位',
                          style: TextStyle(color: Colors.blue),
                        ),
                      )
                    ],
                  )
                ],
              ),
            ),
            const SizedBox(height: 10),
            const Row(
              children: [
                Text(
                  '附近社区',
                  style: TextStyle(color: Colors.grey),
                )
              ],
            ),
            const SizedBox(height: 10),
            ListView(
                shrinkWrap: true,
                physics: const NeverScrollableScrollPhysics(),
                children: nearbyCommunities.map((item) {
                  return GestureDetector(
                    onTap: () {
                      // 跳转到房屋列表页
                      Navigator.pushNamed(context, '/buildingList',
                          // 小区名称
                          arguments: {'point': item['name']});
                    },
                    child: Container(
                      color: Colors.white,
                      padding: const EdgeInsets.all(10),
                      child: Row(
                        children: [
                          Expanded(child: Text('${item['name']}')),
                          Row(children: [
                            Icon(Icons.arrow_forward_ios,
                                size: 16, color: Colors.black),
                          ])
                        ],
                      ),
                    ),
                  );
                }).toList())
          ],
        ));
  }
}
